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(ModeL) F. W. CLARKE. separable Button.

No. 234,754. Patented Nov. 23, I880.

WITNESSES [2V VEJVTOZB.

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YATES NrrED FREDERICK W. CLARKE, OF BROOKLYN, NEW YORK.

SEPARABLE BUTTON.

SPECIFICATION forming part of Letters Patent No. 234,754, dated November 23, 1880.

Application filed September 25, 1880. (Model.)

To all whom it may concern Be it known that I, FREDERICK W. CLARKE, a citizen of the United States, residing in Brooklyn, Kings county, State of New York,

have invented a certain new and useful Improvement in that class of Buttons known as Separable Buttons 5 and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

My invention relates to those portions of the button by means of which the separable parts are coupled together; audit consistsin the construction and arrangement of those parts.

The object of my invention is to produce a button thatshall have a coupling which consists of rigid parts, by means of which the separable parts of the button may, with facility,

be more securely fastened together than they can by means of any coupling at present used in separable buttons.

In order to enable those skilled in the art of using or manufacturing that class of articles to which my invention relates to clearly comprehend the latter, I shall now proceed to describe its construction and operation, reference being had to the accompanying drawings.

The plans and elevations in Figures 3, 5, 6, and 7 and the isometric lines in the other tigures are drawn on a scale of2 to 1 as compared with abutton of the kind shown of the ordinary size.

Fig. 1 is a View of a wristband or collar button which embodies my invention as it appears when the separable parts are coupled together.

Fig. 2 is a drawing of the same button, the separable parts being represented as they appear when detached from each other. I) is the base of the button, and c the shank, which is tubular. k k are lugs or cleats on the interior of the shank, and i i are slots cut in its upper end. a is a circular disk, surrounded by an annular band, a, the disk and band together forming the head of the button. fis the shankpost, at the extremity of which are two lugs, h h, formeu'as shown. The diameter of the shank-post is just great enough to admit of its shank c. d d are spring-bolts, which slidein a groove cut through the middle of the head and shank-post from one side of the head to the other. e e are the feet of the spring-bolts d d. Hereinafter that separable part of the button which is designated in this figure by A, I shall refer to as the head, and that part which is designated by B as the base, of the button.

Fig. 3 presents a plan and sectional elevation of the base, the section shown being that which lies above the broken line was in the plan.

Fig. 4 is an isometric drawing of asection of the base, the section shown being that which lies on either side of the broken line y y in the plan of Fig. 3.

Fig. 5 comprises a plan and elevation of the head.

Fig. 6 is a sectional elevation of the head, the section shown being that which lies to the right of the broken line y y in Fig. 5. m is a double-acting spring, which exerts an outward pressure on the spring-bolts d d; and a a are check-bars, which prevent the said bolts from being pressed too far outward or pushed too far inward.

Fig. 7 is a side elevation of the spring-bolt (I.

Fig. 8 is an isometric drawing of the section of the head shown in Fig. 6 as the said section would appear with the spring on and the springbolt 01 removed. 8 is the groove in which the spring-bolts slide.

Fig. 9 shows the upper plates of the disk a, which, in the button here described, consists of three thicknesses of plate metal. When these plates-of which one is seen in position in Fig. 8are soldered to the rest of the disk to the check-bars n n are turned upward, as shown in Fig. 9 and at a in Fig. 8, and they are not turned down into the position in which they are shown in Fig. 6 until the spring on and spring-bolts cl d have been put permanently in place.

To couple the button, the shank-postf is inserted into the shank c and turned until the lugs h h are opposite the opening between the cleats k. \V hen the head is in this position a slight downward pressure is exerted on it, whereupon the lugs h h will pass down below the cleats 7; It, and the feet 0 e of the springbolts will, by contact with the upper edge of being easily inserted into the interior of the the shank c, be compressed entirely into the slot or groove in the shank-post f, in which they slide. If at this juncture the head of the button be turned until the feet 6 6 come opposite the slots t" i, it is plain that the lugs h It Will pass under the cleats 7a 70, and by thus engaging with them establish the coupling of the button. At the same time the springbolts will be forced outward by the spring m and the feet 0 0 will engage in the slots M, preventing the further turning of the shankpost in the shank and the consequent accidental uncoupling of the button.

Instead of the spring-bolts hereinbefore described any suitable pushers and fastening devices may be used for preventing at the proper time the shank-post from turning in the tubular shank of the button.

FREDK. WV. CLARKE.

NVitnesses W. HAUFF, E. F. KASTENHUBER. 

